Methanides
[建] 甲烷化物
🗣️ 情景例句
She won the first place in a speech contest.
她在演讲比赛中获得很第一名。
Thank you for your letter.
谢谢你的来信。
That was quick! she said. Have you finished already?
“你真快！”她说，“你已经买完东西了吗？”